package com.chainzouzou.Java_Programming_A;
import java.util.Scanner;
public class bct02 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        while (true){
            int a=sc.nextInt();
            int b=sc.nextInt();
            System.out.println(a+b);
        }
    }
}
